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National Geographic

After Year In Space, West Orange Twin Astronauts Now A Little Less Alike: Study After Year In Space, West Orange Twin Astronauts Now A Little Less Alike: Study
After Year In Space, West Orange Twin Astronauts Now A Little Less Alike: Study A year in earth orbit may have subtle but marked effects on the human body, according to the results of a unique experiment involving two West Orange natives.  Twin brothers Mark and Scott Kelly both served in NASA's astronaut corps. As twins, the Kelly brothers were ideal for a study on the effects of space travel. Beginning in 2015, Scott Kelly spent a year aboard the International Space Station while Mark stayed on terra firma. Whatever changes Scott Kelly's physiology underwent in space would be readily apparent by comparing him to his earthbound twin.  The results of that stu…